One of the coolest things about Surly is if they can't find an existing part that fits their standards, they just make one themselves. This cable hanger is made to fit around the oversize bolt on their Constrictor seatpost clamp so you can be sure it will fit around almost any other seatpost clamp bolt too. It comes complete with an adjusting barrel.

Hurdy Gurdy is another nifty device that keeps a rear wheel from slipping forward in the dropout under pedal load. It's designed for the Cross-Check's semi-horizontal front-loading dropouts, and will also work on many other similar dropouts. Hurdy Gurdy is investment cast of stainless steel for durability and good looks, and shares many of Tuggnut's design features. Its two axle holes allow for a wide variety of fore/aft wheel positions, it will work with standard QRs, bolted axles, and nutted axles up to 10mm.

Profile Design's aero-bar extensions are made of light and durable 6061 aluminum, come in different bends to suit all riding positions and feature the standard 22.2mm diameter to fit Profile and other brand base bars and extension mounts (base bars and mounts sold separately). The T2+ model has an aggressive S-bend popular for time-trials and triathlons. They also have holes in them for internally routing your cables.

The Sun Traditional Trike can be made even more useful with the addition of a powerful rear disc brake. This rear disc brake conversion kit includes all necessary components for upgrading your 2016 or later Sun Traditional Trike to smooth and safe braking under hard conditions. The parking brake feature on both front and rear brake levers allows you to lock either or both brakes simultaneously to load or unload with ease. Simple and common parts mean easy maintenance for years of use. Kit includes all components including items such as cable ties and other small parts for an original-equipment look.
- Promax mechanical disc brake caliper with adapter
- Promax 160mm stainless steel rotor with 15mm trike axle adapter
- All components necessary for upgrade are included
- Includes zip ties, axle keys, new grips and other small parts
- Fits only new 2016 Sun Traditional 24" Trikes with new derailleur tab and brake mount on rear unit

The Wolf Tooth ReMote is a significant lever upgrade for cable-actuated dropper seatposts. From its hassle-free installation to smooth ball bearing action to engineered failure point, the lightweight ReMote solves many of the functional problems that come with other dropper lever designs. - Includes barrel adjuster for on-the-fly changes - Lever pivots on a 21mm ball bearing for smooth operation - Engineered break-away pivot that allows the lever to break away from the mount in the event of a crash - Cable Kind Clamp does not damage secured cables and features captive hardware - Integrates with SRAM/Avid MatchMaker X clamp-equipped brake levers for better ergonomics

Same specs as the K13-002 Pro Braze-on Chain Catcher but includes a Cadence Magnet required for SRM Power Meters, as well as other leading power meter brands.
- CNC Machined 6061-T6 Aluminum
- Fitment: All braze-on mounted front derailleurs*
- Hardware: Includes all mounting hardware for Shimano, SRAM, and Campagnolo front derailleurs
* Not compatible with Campy EPS
* May not work with all third-party braze-on adapter clamps
- Made in Boise, Idaho, USA
- Lifetime Guarantee against material or manufacture defects. Damages due to abuse or crashing excluded.

Like some of Surly's other chain tensioning devices, Snuggnut keeps your rear wheel from slipping forward in the dropout under the pedal load of your powerful gams. It's specifically designed for bikes that feature 12mm horizontal, vertical-slotted dropouts and is particularly suited for singlespeed application. Snuggnut is CNC-machined for durability and good looks, and shares many design features found on Tuggnut and Hurdy Gurdy.
Note: The Snuggnut is compatible with horizontal thru-axle dropouts only. If using 10/12 Adapter Washers and QR wheels use a Tuggnut instead. Snuggnut is not for use with MDS Chips.
Compatible models listed below:
- Wednesday
- ECR 29+
- ECR 27.5+
- Ogre
- Krampus
- Karate Monkey SS
- Karate Monkey 27.5

Your Sun Traditional Trike can be made even more useful with the addition of twist-shift 7-speed gearing and a powerful rear disc brake! This complete kit includes all necessary components for converting your 2016 or later Sun Traditional Trike to a 7-speed derailleur system with a mechanical disc brake, giving you an easy and efficient ride up and over any type of hill and smooth, safe stopping on the other side. The parking brake feature on both front and rear brake levers allows you to lock either or both brakes simultaneously to load or unload with ease. Simple and common parts mean easy maintenance for years of use. Kit includes all components including items such as cable ties and other small parts for an original-equipment look.
- Sun Race M30 7-speed twist shifter
- Sun Race M40 7-speed direct-mount derailleur
- Sun Race M3 7-speed freewheel (13-15-17-19-21-24-28T) with 15mm trike axle adapter
- 36T x 1/2" x 3/32" chainring
- K.M.C. Z51 1/2" x 3/32" chain
- Promax DSK-300 mechanical disc brake and mounting hardware
- Promax 160mm stainless steel rotor with 15mm trike axle adapter
- Promax BL-46K 4-finger brake lever with parking lock
- High-density black foam grips, 92mm left side / 130mm right side
- Kit includes all parts needed for complete installation
- Kit only compatible with 2016 or newer Sun trikes with rear derailleur and disc brake mount on rear unit

The 12mm slotted MDS dropout is the newest chip for Surly's MDS equipped trail frames. You like chips, don't you? The 12mm slotted dropout chip uses a standard derailleur mount for maximum compatibility and is made of cast and machined 6061-T6 aluminum, with a fender eyelet. What's the coolest part about the 12mm slotted MDS chip, you ask? The fact that it also has the capability to run a 12 x 142mm thru-axle in a single speed configuration. This is good news because single speeds are good news.
When you get an MDS equipped frame you're getting the option to set it up however you want. You can run a 142 x 12mm thru-axle rear end with a direct mount Shimano hanger, standard 135mm QR or The Mighty Singlespeed. The way this will work is that Surly complete bikes that feature the MDS will ship with whatever chip is compatible with derailleur spec. For instance, the complete Instigator 2.0 ships with the 142 x 12mm thru-axle Shimano chip. If you want to change it to a singlespeed later (and why wouldn't you?), all you have to do is get the SS chip. Frames will ship with all three MDS chips so pick your poison. The 142 x 12mm and 135mm QR chips are made of cast and machined 6061-T6 aluminum and The Mighty Singlespeed chip is 304 stainless steel, because the two words 'aluminum' and 'singlespeed' should never be too close to each other. Bad things can happen…. As you can see, the MDS gives you not just different build options, it lets you use a more varied selection of parts for your frame up builds. The MDS is featured on most of our trail bikes. That's right: Krampus Ops, Karate Monkey Ops, Instigator 2.0 and Ice Cream Truck frames all sport these puppies.

When you need to move your handlebars up, install Sunlite's Chromoly Quill Stem Extender. One end goes inside the steerer tube and your quill stem inserts into the top. It provides 8 1/4 inches of rise and is compatible only with quill stems and steerer tubes.

The Problem Solvers Cassette Spacers are made of light and durable anodized aluminum and come in different thicknesses for correctly spacing various brand and model cassette cogs. Measure and match your spacers to choose the right width.

- Includes 61803 bearings and one grease syringe
- Measurable wattage savings between 1.5 and 9 watts per bearing set, depending on the level and condition of your existing bearings
- These 61803 bearings are not interchangable with the 88/188 hub 61803 bearings